Products > ProLinx stand-alone > Ethernet > DNP over Ethernet > DNP o...us Master/Slave Communication Module - Prolinx Communication Gateways
Protocols TCP (1 connection) and UDP
Node address 0 to 65534 – software selectable
Status Data Error codes, counters and port status
The DNPSNET module accepts DNP commands to control and monitor the data
stored in the DNP databases. These data are passed between the module and the
other protocol on the ProLinx module.
Modbus Protocol Specifications
The Modbus driver provides access to an internal database of 4000 registers (words),
with extensive support provided for both the Master and the Slave implementations of
the protocol. The serial port(s) on the gateway can be individually configured to
support the Modbus protocol (Master or Slave, RTU or ASCII, Baud Rate, etc).
General Parameters – Modbus Protocol
Type Specifications
Communication
parameters
Baud Rate: 110 to 115K baud
Stop Bits: 1 or 2
Data Size: 7 or 8 bits
Parity: None, Even, Odd
RTS Timing delays: 0 to 65535 ms
Error Checking RTU mode (binary) with CRC-16
ASCII mode with LRC error checking
Floating Point Floating point data movement supported, including
configurable support for Enron implementation
Function Codes 1 : Read Output Status
2 : Read Input Status
3 : Read Multiple Data Registers
4 : Read Input Registers
5 : Write Single Bit
6 : Write Single Data Register
15 : Write Multiple Bits
16 : Write Multiple Data Register
Modbus Master
Type Specifications
Command List Up to 100 command per master port, each fully
configurable for function, slave address, register to/
from addressing and word/bit count
Status Data Error codes are provided on an individual command
basis, as well as a slave status list is maintained per
active Modbus Master port.
Polling of command
list
Configurable polling of command list, including
continuous and on change of data, and dynamically
user or automatic enabled.
Modbus Slave
Type Specifications
Node address 1 to 247 – software selectable
http://www.prolinxgateways.com/content/view/full/6930 (3 of 5)11/18/2005 4:10:17 AM
(74 paginas)
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